Topband: Re: Rate of rise clipping

[Lawrence Stoskopf]

> If there is someone out there that can devise a circuit for receiver RF
> front-ends that will clip stronger signals and noise, while passing weak
> signals untouched, most existing modern radios could be instantly
> transformed into super receivers.  The chips probably now exist.   > 73, Doug / NX4D (nr Orlado, Fla.)

Years ago in (maybe the RSGB TT?) there was an analog, discrete parts, 
circuit which compared a delayed input to a rate of rise input and blanked 
or attenuated anything that came up faster than your desired signal.  Was 
done at the IF level as existing parts needed a higher signal level to 
function.  Filed it away somewhere as it looked promising as something 
before a Cheby sharp filter. 

N0UU